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May 2009 | Volume 7| Issue 2          

FEATURE ARTICLE:
NEW APPLICATION NOTE
Turnkey Solution for the Determination of TPH Compounds in Ground and Surface Water Using Automated SPE

Total petroleum hydrocarbons (TPHs) is a term used to describe a large family of several hundred chemical compounds that originally come from crude oil. Crude oil is used to make petroleum products, which can contaminate the environment.

TPHs can be released into the environment through accidents, such as releases from industries, or as byproducts from commercial or private uses. When TPHs are released directly into water through spills or leaks, certain TPH fractions will float in water and form thin surface films. Other heavier fractions will accumulate in the sediment at the bottom of the water, which may affect bottom-feeding fish and organisms.

The EPA regulates certain TPH fractions, products, or wastes containing TPH, as well as some individual TPH compounds. It is important to monitor and measure TPH levels as the can have harmful health effects.

Automated SPE and concentration can provide fast sample preparation while improving the quality and consistency of results for TPH compounds C10 to C40 (EPA Method 8015). Traditional methods for extraction of TPH compounds can be problematic, such as iquid-liquid extraction (LLE), which can form emulsions and have corrosion problems, requiring the use of chemicals such as biocides, emulsion breakers and corrosion inhibitors.

Automated SPE and the use of SPE disks eliminates many of the problems that may occur during the extraction step.

Click here to download the complete Application Note

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NEW WEBINAR:

Upcoming Webinar
Join us June 18th at 10:30 AM EST for a 30 minute webinar:

EPA Method Modifications - 1664A
Complying with the Modifications to EPA Method 1664A Using Automated SPE
STAY TUNED TO YOUR INBOX FOR INVITATION!

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PRODUCT INFORMATION:

Upgrade Your SPE-DEX® 1000XL / 3000XL Controller to Accommodate EPA Method 1664A Modifications

Upgrade to the new 1000XL / 3000XL Controller for your EPA Method 1664A modification needs.

This Controller has specially modified and optimized software to properly handle the required 1664A method changes. The new Controller software code will spray the methanol rinse solvent into the sample bottle, and will soak the disk to remove residual water. Once this completes the methanol will be taken to solvent waste, not into the collection vessel.

To maximize the recovery values, the sequence of when the methanol is sprayed into the sample bottle and introduced onto the disk, has been changed. This new sequence will provide the optimal recovery values using the required changes being mandated by the EPA. This operation is permissible under the EPA modifications.

Contact Horizon Technology at 1-603-893-3663 or via email to lean more.

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